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America 250: Rails that built a nation: How America’s technological future began with the railroad
As the U.S. Department of Transportation notes that for nearly two centuries, “railroads have been an indispensable part of America’s economy, society and way of life.” That indispensability wasn’t ...
In 1950, a huge open-pit copper mine opened beside a small town in Arizona. As the mine expanded over the next two decades, ...
Scientists have developed a methodology to convert America's half a million abandoned coal mines into long-term pumped hydro energy storage facilities, offering solutions for environmental cleanup, ...
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